B Understanding Reflection in Light: Electromagnetic Interactions with Matter

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If light encounters -normal- matter, the electromagnetic aspects of the influence of the electrons will be interacted with (I'm ignoring any stress contributuins to gravity) which is (scattering matrix?) either nothing at all (translucency) due to quantisation, or absorbtion.

Is this correct?

If so, how is it that light be reflected?
 
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_PJ_ said:
If so, how is it that light be reflected?
You might want to give Feynman's book "QED: the strange theory of light and matter" a try.
 
Yrs i have that book, unfortunately, it's in storage, and I've not seen an english-language version here. Sadly I am unable to memorise entire chapters I had read over ten years ago.
 
I do recall passages and diagrams concerning internal reflections and the phase-changes as result but the details are fuzzy now. Also, I seem to recall diagrams where light was an oscillating line and matter had a ' surface' marked by a continuous, thin line...

I am unconvinced that matter is composed of space thus bounded.
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
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